Fastener for the meeting-rails of sashes



No. 247,675. Patented Sept. 27,1881.

Iwrewtor; 77z'ZZa'anw/MJZZar UNITED STATES PATENT OFFICE.

WILLIAM MILLER, OF BOSTON, MASSACHUSETTS.

FASTENER FOR THE MEETING-RAILS OF SASHES.

SPECIFICATION formingpart of Letters Patent No. 247,675, dated September 27, 1881.

Application filed June 14, 1881. (No model.)

lently turned to unfasten the window by a blade 7 inserted between the meeting-rails secondly, to provide improved means for securing the lever when it is turned to unfasten the sashes,

so that it cannot be accidentally turned over the,

lower sash, and for preventing the lever from striking against the glass of the upper sash when it is turned to unfasten the sashes. To these ends my invention consists. in the several improvements which I will now proceed to describe and claim.

In the accompanying drawings, forming part of this specification, Figure 1 represents atop view of a sash-fastener embodying my invention, the lever being in position to lock the sash. Fig. 2 represents a section on line as m, Fig. 1. Fig. 3 represents a top View with the lever turned to unfasten the sash. Fig. 4represents a section on the line y 1 Fig. 3. Fig. 5 represents an elevation, showing the lever turned to unfasten the sash. Fig. 6 represents an end elevation of the plate to which the lever is pivoted.

The same letters of reference indicate the same parts in all the figures.

In the drawings, A and B represent respectively the meeting-rails of the upper and lower sashes of a window. L is alever, pivoted at a to a plate, P, which is rigidly attached to the meeting-rail 'A. The lever L has a handle, R, and is provided with a dog, d, pivoted atc between two lugs, 0, formed upon the outer portion of the lever L.

P represents aplate rigidly attached to the meeting-rail B, and provided with a slot, 6, and a series of upward] y-projectin g ratchet-teeth, t. The dog dis weighted at its forward extremity, d, so that its own weight will cause it to drop forward and engage with the ratchet-teeth t on the plate P when the lever L is turned over said plate to look the sashes, as shown in Fig. 1.

The lever L has a downwardly-projecting arm, f, which arm moves within the slot 6 when the leverL is turned over the plate P, and bears against a stop, a, which is the extremity of said slot when the leverL is moved to a position at right angles with the sash, or to the position shown in Fig. 1, thus preventing the further movement of the lever L in one direction, while said leveris secured against movement in the opposite direction by the engagement of the dog d with the ratchet-teeth t, as before described. It is obvious that the lever L cannot be movedin either direction without disengaging the dog d from the ratchet-teeth, and the sash is therefore securely locked, and the lever L cannot be fraudulently turned by the introduction of a blade or similar instrument between the meeting-rails from the outside.

It has heretofore been found impossible to perfectly lock the sashes with fasteners of the ordinary manufacture when the meeting-rails have become swollen or warped from the action of the weather, so that they do not closely fit together and are out of level with each other, inasmuch as thelocking-levercannot then be thrown fully across the meeting-rail of the lower sash. With a sash-fastener of my improved construction, however, the sashes may be securely locked when the lever L is not thrown fully across the plate P, as the dog d can be locked in different positions by the ratchet-teeth t.

Thepressureofthe thumb upon the extremity h of the dog (1 will tip the dog upon its pivot c and disengage its forward extremity from the ratchet-teeth and allow theleverL to be moved.

5 represents an upwardly-projecting tooth formed upon the plate P, having an inclined upper surface, 6, and also provided with a shoulder or projection, l.

' When the lever L is moved away from the plate P to unfasten the sashes the lower edge of the forward extremity of the dog d is brought into contact with the inclined portion i of the tooth i, and as the lever L is pushed away from the lower sash the dog at is gradually raised upon its pivot 0 until the lever L is brought against the shoulder l, as shown in Fig. 3,

when the dog falls forward and engages with the tooth i, the lever L being thus held away from the lower sash, while the shoulder lprevents the lever from striking against the glass.

Having thus described my invention, I claim- 1. In afastener for the meeting-rails ofsashes, the combination of the lever pivoted to the upper sash and provided with the arm f, the weighted dog pivoted to the outer portion of the lever, a series of ratchet-teeth on the plate of the lower sash, each tooth being adapted to engage with the dog of the lever, so that the [0 lever can be locked in several positions, and a stop, 12 adapted to co-operate with the arm f in arresting the movement of the lever in one direction, as set forth.

2. The combination of the pivoted lever hav- I5 ing the weighted dog, and the plate P,having the upward!y-projecting tooth 1', provided with an inclined surface, 6, adapted to raise the dog and permit the same to engage with the rear side of said tooth, and with a shoulder, 1, formingastop to prevent thelever from strikingthe glass of the sash to which it is pivoted, as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 9th day of June, A. D. 1881.

WVILLIAM MILLER.

Witnesses:

H. G. WADLIN, D. B. MoRRrsoN. 

